Nonodle

What Is Nonodle?

Nonodle is a daily browser-based nonogram puzzle. Each day gives you a fresh grid with numbers along its rows and columns, and your goal is to determine which cells should be filled to reveal a hidden pixel-art image. It is designed as a compact daily challenge rather than a huge puzzle collection. The puzzles vary in difficulty and density, work on both desktop and mobile, and are intended to be solvable through logical deduction rather than blind guessing.

How the Nonogram Clues Work

Every number beside a row or above a column tells you the length of a consecutive group of filled cells. For example, a clue of: 3 means that somewhere in that row there must be exactly three connected filled cells: [ ][■][■][■][ ][ ] If a line has multiple clues, such as: 2 1 it contains a group of two filled cells followed later by a separate group of one, with at least one empty cell between them: [■][■][×][ ][■] The exact positions are not given directly. You determine them by combining information from both the horizontal and vertical clues.

The Logic-Only Twist

Nonodle emphasizes deduction. You should fill a cell only when the clues prove that it must be occupied, and mark cells with crosses when you know they must remain empty. Suppose a five-cell row has the clue 5. There is only one possible arrangement: [■][■][■][■][■] But if the clue is 1, you cannot immediately know which cell is filled. Instead of guessing, you move to another row or column where the clues provide more certainty and return later with additional information. This back-and-forth between rows and columns is the heart of the puzzle.

How to Play Nonodle

1. Read the row and column clues. Start with lines where the placement of filled cells is obvious or heavily constrained.
2. Fill certain cells. Mark squares that must belong to one of the numbered groups. A large clue in a short row is often a useful starting point.
3. Mark confirmed empty cells. Use crosses to show squares that cannot contain part of a group, especially around groups you have already completed.
4. Alternate between rows and columns. Every new filled or crossed cell provides information for the intersecting line. Keep using these deductions until the entire grid is resolved.
5. Reveal the picture. When every clue is satisfied, the filled squares combine into the day's hidden pixel image.

A Simple Solving Example

Imagine a five-cell row with this clue: 3 At first, the group of three could start in several places: [■][■][■][ ][ ] [ ][■][■][■][ ] [ ][ ][■][■][■] Notice that the center cell is filled in every valid arrangement. Even though you do not yet know the complete row, you can safely fill that center square. Later, information from the column clues may rule out one side of the row, allowing you to place the remaining two cells and cross out the spaces that cannot be used. That style of deduction is much more useful in Nonodle than trying possible answers at random.

Tips & strategy

Pencil in every forced move before guessing, and re-check earlier clues whenever new information appears.